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Posted to notifications@asterixdb.apache.org by "ASF subversion and git services (JIRA)" <ji...@apache.org> on 2019/03/13 22:13:00 UTC
[jira] [Commented] (ASTERIXDB-2459) Adding Postgres statistic
aggregates (single variable)
[ https://issues.apache.org/jira/browse/ASTERIXDB-2459?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16792148#comment-16792148 ]
ASF subversion and git services commented on ASTERIXDB-2459:
------------------------------------------------------------
Commit 3e14ced362d7ddf371d524b478882ad72d74249a in asterixdb's branch refs/heads/master from James Fang
[ https://gitbox.apache.org/repos/asf?p=asterixdb.git;h=3e14ced ]
[ASTERIXDB-2459][FUN] Add skewness and kurtosis aggregate function
- user model changes: yes
- storage format changes: no
- interface changes: no
Details:
1. Add skewness and kurtosis function and test cases
2. Add skewness and kurtosis distinct functions
3. Add documentation for skewness and kurtosis
4. Cleaned up some files related to the stddev and var tests cases
5. Change stddev() to stddev_samp() and var() to var_samp()
Change-Id: Iae0d7fc9d5ab3676b23b27ad62a730598221d8a5
Reviewed-on: https://asterix-gerrit.ics.uci.edu/3037
Tested-by: Jenkins <je...@fulliautomatix.ics.uci.edu>
Contrib: Jenkins <je...@fulliautomatix.ics.uci.edu>
Integration-Tests: Jenkins <je...@fulliautomatix.ics.uci.edu>
Reviewed-by: Dmitry Lychagin <dm...@couchbase.com>
> Adding Postgres statistic aggregates (single variable)
> ------------------------------------------------------
>
> Key: ASTERIXDB-2459
> URL: https://issues.apache.org/jira/browse/ASTERIXDB-2459
> Project: Apache AsterixDB
> Issue Type: Improvement
> Components: FUN - Functions
> Reporter: James Fang
> Priority: Minor
>
> We are currently missing some of the aggregation functions that exist in PostgresSQL and among these are the single variable statistics functions: stddev, stddev_pop, variance, variance_pop, skewness and kurtosis.
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